3-V to 17-V input voltage, 4-A OOA mode, synchronous buck converter with PG

The TPS56425x is a simple, easy-to-use, high

efficiency, high power density, synchronous buck converter with input voltage

ranging from 3 V to 17 V and supports up to 4-A continuous current at output voltages

between 0.6 V and 10 V.

The TPS56425x employs D-CAP3 control mode to

provide a fast transient response and to support low-ESR output capacitors with no

requirement for external compensation. The device can support up to 97% duty cycle operation. Integrated

bootstrap capacitor helps achieve single layer PCB and can save total BOM

cost.

The TPS564252

operates in Eco-mode, which maintains high efficiency during light loading. The

TPS564257 operates in FCCM mode, which keeps the same frequency and lower output

ripple during all load conditions. The TPS564255 operates in OOA mode, which

prevents audio noise generation. The device integrates complete protection

through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in 1.6 mm ×

1.6 mm SOT-563 package. The junction temperature is specified from –40°C to

125°C.